PURPOSE: To obtain a cutter facility having extremely-high productivity by providing a cutter group, etc. comprised of a stationary cutter and a moving cutter on a feed line of a cutter facility for split-cutting a lengthy steel pipe into many parts concurrently.

CONSTITUTION: A lengthy steel pipe 1 fed from the left side by pipe feed rollers 9", 9A, 9 is fed to a stationary cutter B at a high speed, its front end position is measured by a measuring roll 10, and after it is fitted to a preset position and stopped, it is clamped and centered by individual rotating clampers 6, then the pipe is rotated a preset angle in conjunction with the cutting feed of rotating saw edges 7, thus performing split cutting. Short pipes having been cut off are fed out to the outlet side of a bus line through each cutter by the pipe feed rollers 9A located on both sides of cutters and the pipe feed rollers 9 provided between cutters. Crops at both ends are dropped on the spot from crop drop ports 8 opened on a cutter frame and discharged by a crop conveyor.